Improvement in window-shades



F. C. MARTIN.

Improvement in Window Shades.

No. 124,146. Patented Feb.27,1e72.

Fagq.1.

Wiizesws Zia/Fellini" i v ./librl'y 'ATES FRANCIS C. MARTIN, OFBROOKLYN, NEW YORK.

IMPROVEMENT IN vWlvlDOW-SHDES.

Specification forming part of Letters Patent No. 124,146, dated February2T, 1872.

New York, have invented certain new and useful Improvements in CombinedRoller \Vindow Shade or Screen, of which the following is aspecification:

My invention relates to certain improvements in window screens andshades, the object of which is to combine in one device the offices ofinside or outside shutters and curtains or shades, and it consists of aiiexible screen or shade, moving in guides in the window-frame and overfriction-rollers on said frame, and secured to a roller which isprovided with a drum, around which the operating-cord is wound, whichcord passes through the frame inside the room, where it is held betweena cam and roller.

In the drawing, Figure l is a front or outside elevation of awindow-trame and cap, part ot' which frame is broken away to expose thedrum and shade or screen guides. Fig. 2 is a vertical section taken onthe line x Fig. l. Fig. 3 is a front elevation of one of thefriction-rollers over which the shade or screen Fig. 4L is a frontelevation ofthe cam and roller for holding the cord.

A represents the window-cap, and B B the sides ofthe frame. A space isleft behind the cap, and on the sides of the frame, up in this space,suitable bearings a a are arranged, in which the journals ot' a roller,b, rest. rlhis roller b has secured upon one of its ends, which may besquared, a drum or pulley, c, provided with iianges d d. This drum anditstlanges are cast in one piece. C is a screen, shade, or shutter, madeof slats of wood or other material, secured to canvas or strips ofcloth, leather, Ste., and attached to the roller b. Frictionrollers care secured to a cross-piece on the frame, and over said rollers thescreen passes,

on the outside or inside of the window-sash, and in grooves ff, whichserve as guides for the screen as it is drawn up and down. The screen isprovided with a weight, m, t-o facilitate its fall and hold it down inplace. Around the drum c I wind a cord, g, which is secured to said drumby one end. It passes thence through an opening, h, in the wall orframe; and the screen having` been drawn to the proper height, the cordholding it is secured between a cam, 1'., having a serrated orcorrugated face and a similarly-roughened roller, 7c, both being iixedto a plate, l, which is secured to the frame by screws, &c.,'as seen inFig. 4.

The screen orshade can be arranged to fall inside or outside of thewindow, so as to serve as inside or outside shutters or as a curtain;and, of course, the friction-rollers c will have to be arranged furtherback than shown in the drawing if the shade is to be used inside the window, and the grooves j' will also have to be arranged to correspond.

To raise the screen the cord g must be pulled down, which rolls thescreen around the roller b; and when it is at the desired height'thecord is held between the cam t' and roller lo; and whenit is desired topermit its fall, the cord g has simply to be released, when it will fallof its own weight. The shade can be adjusted at any desired height bymeansot the cord and the cam and roller, so as to regulate the amountoi' light admitted to the room.

What I claim as my invention is- 1. The exible screen or shade C, incombination with the grooves j', friction-rollers c, and roller b,constructed and operating substantially as described.

2. The drum or pulley c, cast Ain one piece with the deep groove andanges d d, in combination with a cord, g, roller b, stop t', roller Z,and shade or shutter, composed of strips arranged upon canvas, leather,or other material, and adapted to roll up, all operating substantiallyas specified.

In testimony that I claim the foregoing I have hereunto signed my namethis 6th day of February, 1872.

FRANCIS C. MARTIN.

Witnesses ALBERT H. NoRRIs, J Arms L. NoRRIs.

